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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| 6 |
| 8 |
| AS399945US | AS-AWS - Aisanie Web Solution Inc | 512 | — | 2 |
| AS32155US | NHC-NV1 - New Horizon Communications Corp. | 512 | — | 2 |
| AS399326US | SPE-COOP-MS - Southern Pine Electric Cooperative | 512 | — | 1 |
| AS14431US | UCC-INET - Umpqua Community College | 512 | — | 2 |
| AS397007US | STRATACACHE - Stratacache Inc. | 512 | — | 2 |
| AS398951US | WBSTRM - WebStream llc | 512 | 4.1K | 3 |
| AS25739US | ADTRAN - Adtran, Inc. | 512 | 17 | 4 |
| AS47018US | CE-BGPAC - Covenant Eyes, Inc. | 512 | — | 2 |
| AS53350US | EMBHUN-WAS-01 - Embassy of Hungary | 512 | — | 2 |
| AS36106US | MANAGEDNODES - Managed Nodes LLC | 512 | — | 1 |
| AS395268US | INSPERITY - Insperity Services, L.P. | 512 | — | 2 |
| AS15033US | XPRES-PDX - XPRESSBET INC. | 512 | — | 2 |
| AS402187US | AANSYS-NET - AANSys Network LLC | 512 | — | 2 |
| AS394333US | TRANSATEL-US - TRANSATEL | 512 | 65.5K | 3 |
| AS62973US | CATAWBAVALLEYMC - Catawba Valley Medical Center | 512 | — | 2 |
| AS397915US | HALLRECORDS-01 - Hall Records Music | 512 | 16 | 2 |
| AS397989US | COP-CH - City of Portsmouth, Virginia | 512 | — | 2 |
| AS398004US | TGNA-KSFM - TEGNA Inc. | 512 | — | 2 |
| AS23134US | VERSO-PUB-RANGE1 - Verso Corporation | 512 | — | 2 |
| AS400329US | CLEARPATH-FIBER-01 - ClearPath Fiber | 512 | — | 2 |
| AS32810US | ITCE-888-01 - IT Colo Exchange | 512 | — | 2 |
| AS393565US | MAXPOINT-INTERACTIVE - Valassis Digital Corp. | 512 | — | 1 |
| AS14062US | AKQA - AKQA, Inc. | 512 | — | 2 |
| AS394294US | OTC-AS - Oriental Trading Company, Inc. | 512 | — | 2 |
| AS393982US | WIDEORBIT-WOCLOUD - WideOrbit LLC | 512 | — | 2 |
| AS29919US | 29919 - SELECT PORTFOLIO SERVICING INC | 512 | — | 2 |
| AS36139US | INTRIGUECOMM - Intrigue Communications LLC | 512 | — | 2 |
| AS21985US | MASCO-CONTRACTOR-SERVICES - Masco Contractor Services | 512 | — | 2 |
| AS36517US | AS-UGIUTIL - UGI Utilities Inc. | 512 | — | 2 |
| AS54354US | CHESSCOM-01 - Chess.com, LLC | 512 | — | 2 |
| AS14458US | WORLDKITCHEN-1 - World Kitchen, LLC | 512 | — | 2 |
| AS6318US | CHECKFREE - Fiserv Solutions, LLC | 512 | — | 2 |
| AS26963US | CCCU-1 - City & County Credit Union | 512 | — | 2 |
| AS54199US | FRISCOTEXAS - City of Frisco | 512 | — | 2 |
| AS18829US | GALAXY-CONTROL-SYSTEMS - Galaxy Control Systems | 512 | — | 2 |
| AS218986US | SnowcoreInc Snowcore Inc | 512 | — | 2 |
| AS399341US | CD - Campaign Deputy | 512 | 16 | 3 |
| AS393327US | EREFIBER - ERE FIber | 512 | 65.5K | 2 |
| AS400734US | LTI - Link Technologies, Inc. | 512 | 16 | 3 |
| AS22842US | ATT-L3 - Butler County Community College | 512 | — | 2 |
| AS399740US | NEOGOV-DR - NEOGOV | 512 | — | 2 |
| AS30232US | M3C-AS30232 - M3 Consulting LLC | 512 | 4.1K | 2 |
| AS397498US | CCSD-ASN - Cherokee County School District | 512 | — | 2 |
| AS16611US | INFINIAHOST - InfiniaHost.com | 512 | 69.6K | 5 |
| AS396861US | PROPATH - ProPath Services, LLC | 512 | — | 2 |
| AS53493US | JOEMC-1 - Jones Onslow Electric Membership Corporation | 512 | — | 2 |